Name: Marine Limit Switch and Adjustable Limit Switch
Brand: JIEXI Fast Marine Service(Guangzhou) Co., Ltd
SKU: B-81-WM
Availability: InStock
Rating: 5 (1 reviews)

Description

Specification

Product Name	Limit Switch LX918-11L
Standard	IEC60947-5
Ui	500V
Ith	10A
Protection Level	IP56
Material	Plastics, Metal
Compliance Standards	This product conforms to GB14048.5-2008 "Control Circuit Appliances and switching components electromechanical circuitappliances" standard requirements, and in line with Marine CB standard.
Structure and Working Principle	The mechanical structure of this product is through the push rod or swing arm to push the switch contact to complete the required function. Contact of limit switch. The switch can be automatically reset due to the action of spring. The operating position Angle is 85° < 0° to 85°. The contact closing and disconnecting action Angle is no more than 30°.And can be used in 360° rotation without damage function.
Use	This product is suitable for ships, offshore platforms, ports and other mechanical equipment in the electrical equipment control circuit can limit the stroke of the limit switch, has a reasonable and reliable mechanical structure, small size, beautiful appearance, convenient installation and other advantages, and can be used in the whole climate environment. The shell of this product is made of zinc alloy or stainless steel with excellent mechanical strength and corrosion resistance. The protection grade is IP56 or above.
Environmental Conditions	Rated data
Ambient Air Temperature	25° C ~ + 55 ° C

In the electrical control system, the role of position switch is to realize sequence control, positioning control and position state detection. Used to control the stroke and limit protection of mechanical equipment. Construction: Consists of an operating head, a contact system and a housing.

In actual production, the travel switch is installed in a pre-arranged position, and when the module installed on the moving parts of the production machinery hits the travel switch, the contact of the travel switch acts to realize the circuit switching. Therefore, the stroke switch is an electrical appliance that switches the circuit according to the stroke position of the moving parts, and its principle of action is similar to that of a button.
The stroke switch is widely used in all kinds of machine tools and lifting machinery to control its stroke and protect the terminal limit. In the control circuit of the elevator, the travel switch is also used to control the speed of the car door, the limit of the automatic opening and closing, and the protection of the upper and lower limits of the car.
The travel switch can be installed on a relatively stationary object (such as a fixed frame, door frame, etc., referred to as still life) or a moving object (such as a car, door, etc., referred to as an animal). When the animal approaches the still life, the connecting rod of the switch drives the switch contact, causing the closed contact to break or the open contact to close. The action of the circuit and mechanism is controlled by the change of the open and close state of the switch contact.

Type characteristics
Conventional domestic travel switch
In the conventional stroke switch, LX19-001/111 in the LX19 series, LXK3-20S/T in the LXK3 series, and JLXK1 series JLXK1-111/411/511 are the most representative. These products have the advantages of simple structure, practical function and low price, and are favored by the majority of users.
Inlet stroke switch
Imported travel switch WL series, HL series, D4V series, SZL-WL series is the most representative force, such products fine workmanship, superior performance, more prominent in extreme environments, won a large number of fans, but the high price also makes many users amazed.
High temperature travel switch
The most influential of the domestic high-temperature travel switches is the YNTH series of high-temperature travel switches, which are generally used in steel mills. YNTH travel switch can work normally in a high temperature environment, the maximum working temperature is 350 degrees, the temperature of the working environment will increase the life of the product will decrease accordingly, more than 300 degrees to reduce the workload of the switch to ensure the life of the product. The low price and stable performance of this series of travel switches have won the praise of our customers.
Waterproof travel switch
YNFS(TZ) series of domestic waterproof travel switch is more prominent. YNFS travel switch has the characteristics of small size, high sensitivity, strong sealing, oil resistance and corrosion resistance, and the most amazing thing is that this type of travel switch can be put in water to work so that similar products can not match.
According to its structure, the travel switch can be divided into direct-acting type, roller type, micro-moving type and combined type.
Direct acting travel switch
The action principle is similar to the button, except that one is manual, and the other is collided by the bumping block of the moving part. When the bumping block on the external moving part presses the button to make the contact move, when the moving part leaves, the contact automatically resets under the action of the spring.
Direct acting travel switch
1: push rod 2&4: spring 3: breaking contact 5: making contact
Roller type travel switch
When the stop iron (bumping block) of the moving machine presses on the roller of the travel switch, the transmission lever rotates together with the rotating shaft, so that the CAM pushes the bumping block, and when the bumping block presses to a certain position, the micro-switch is pushed to move quickly. When the stop on the roller is removed, the reset spring causes the travel switch to reset. This is a single-wheel automatic recovery stroke switch. The two-wheel rotary travel switch can not be automatically restored, it is to rely on the reverse movement of the moving machinery, the stop iron collision with another roller to restore it.
When the ram on the controlled machine hits the ram with a roller, the ram turns to the right, drives the CAM to rotate, pushes the rod up and down, and makes the contacts in the microswitch move quickly. When the moving machine returns, under the action of the reset spring, each part of the moving parts are reset.
Roller type travel switch
1: Roller 2: upper arm 3&5&11: spring 4: sleeve
6: Pulley 7: pressure plate 8&9: contact 10: horizontal plate
The roller travel switch is divided into a single roller automatic reset and a double roller (Angle type) non-automatic reset, the double roller row shift switch has two steady state positions, has a "memory" effect, and can simplify the line in some cases.
Microswitch type travel switch
The composition of micro-switch type travel switch, taking the commonly used LXW-11 series products as an example, its structure principle is shown in Figure F3:
1: push rod 2: spring 3: moving contact 4: breaking contact 5: compression spring

By use
General purpose travel switch: such as JW2, JW2A, LX19, LX31, LXW5, 3SE3 series. Mainly used for machine tools and other production machinery, automatic production line limit and program control.
Lifting equipment for travel switch, such as LX22, LX33 series. It is mainly used to limit the stroke of lifting equipment and various metallurgical auxiliary machinery.

Marine Limit Switch and Adjustable Limit Switch

Description

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